lockdep.h 1.5 KB

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  1. #if !defined(_TRACE_LOCKDEP_H) || defined(TRACE_HEADER_MULTI_READ)
  2. #define _TRACE_LOCKDEP_H
  3. #include <linux/lockdep.h>
  4. #include <linux/tracepoint.h>
  5. #undef TRACE_SYSTEM
  6. #define TRACE_SYSTEM lock
  7. #ifdef CONFIG_LOCKDEP
  8. TRACE_FORMAT(lock_acquire,
  9. TP_PROTO(struct lockdep_map *lock, unsigned int subclass,
  10. int trylock, int read, int check,
  11. struct lockdep_map *next_lock, unsigned long ip),
  12. TP_ARGS(lock, subclass, trylock, read, check, next_lock, ip),
  13. TP_FMT("%s%s%s", trylock ? "try " : "",
  14. read ? "read " : "", lock->name)
  15. );
  16. TRACE_FORMAT(lock_release,
  17. TP_PROTO(struct lockdep_map *lock, int nested, unsigned long ip),
  18. TP_ARGS(lock, nested, ip),
  19. TP_FMT("%s", lock->name)
  20. );
  21. #ifdef CONFIG_LOCK_STAT
  22. TRACE_FORMAT(lock_contended,
  23. TP_PROTO(struct lockdep_map *lock, unsigned long ip),
  24. TP_ARGS(lock, ip),
  25. TP_FMT("%s", lock->name)
  26. );
  27. TRACE_EVENT(lock_acquired,
  28. TP_PROTO(struct lockdep_map *lock, unsigned long ip, s64 waittime),
  29. TP_ARGS(lock, ip, waittime),
  30. TP_STRUCT__entry(
  31. __field(const char *, name)
  32. __field(unsigned long, wait_usec)
  33. __field(unsigned long, wait_nsec_rem)
  34. ),
  35. TP_fast_assign(
  36. __entry->name = lock->name;
  37. __entry->wait_nsec_rem = do_div(waittime, NSEC_PER_USEC);
  38. __entry->wait_usec = (unsigned long) waittime;
  39. ),
  40. TP_printk("%s (%lu.%03lu us)", __entry->name, __entry->wait_usec,
  41. __entry->wait_nsec_rem)
  42. );
  43. #endif
  44. #endif
  45. #endif /* _TRACE_LOCKDEP_H */
  46. /* This part must be outside protection */
  47. #include <trace/define_trace.h>